Printing machine



Oct. 3, 1939. A. POTDEVIN 2,174,723

PRINTING MACHINE Filed Aug. 20', 1936 INVEN TOR. RDOLPM 7 0 to: vnv

. W ATTORN s.

Patent d oi.3', 1939 e I V 2 174 723 UNITED STATES PATENT OFFICE-PRINTING MACHINE ldolph Potdevin, Garden City, N. Y., assignor toPotdevin Machine Company, Brooklyn, N. Y., a corporation of New York IApplication August 20, 1936, Serial No. 86,913

8 Claims. (Cl. 101 -248) This invention relates to improvements indrical bearing members are moved laterally for printing presses and isparticularly directed to coarse adjustment. The inner ends of thememmeans for aligning the printing rollers to bars l4 and is areprovided with slots I5 and properly register the printed matt r; II,respectively, removablyto receive the ends 5 In machines of thecharacter indicated, in V of t e printing Shaft y the 5 printing sheets,bags or other separated articles shaft Ill can be removed when thebearin s l4 it is essential that the printing be always imand I6 arewithdrawn sufilcientiy Outward of pressed in the same position on thearticle, and e machine to h Clea! 0f the ends of s s a in the past, dueto slippage, it became necessary The pinionsM and 46 are carried onmanually in frequently to stop the machine while the articles p a le safts 45 and r sp y, these 10 were realigned. shafts being provided withthumb nuts 49 and 5|,

It is an object of the present invention to prorespectively, manual otaton of the same. vide a machine of the character indicated where- Knurlednuts 53 and 5 are o p v ded fo t e in the printing rollers can beadjusted transsh fts 45 and 41, respectiv y. wh e y o lo k versely andperipherally to print articles in the same adjusted positieh- M properregiste'r, Within the bearing M is provided a screw 48 Other objects ofthe present invention will be for fine! lateral adjustment of the P tmanifest from the following description and the T0119! This screw is eadin t e Outer accompanying d i i h h d i end of the bearing'lt. The innerextremity of Fig. 1 is a plan view of an embodiment of my e screw 48 isjo d in a block 59 p d 20 invention; 7 to engage the end of the shaftID. The outer Fig. 2 i i on t line 5-5 of Fig 1; end of this screw isprovided with a head 52 to Fig, 3 i a i on t line 5 of 1; facilitaterotation of the screw. A wing nut 54 Fig. 4 is a section on the line 1-1of Fig. l; isplovided 1501001; the screw 68 in adju P and ion. Fig. 5 isa plan view of the bearings for one of The opposite bearing l6 enclosesa coil spring th printing 11 56 which abuts the end of the shaft l0 andthe Referring to t drawing in detail; 2 desig end wall of the bearing.It will be obvious that mates part f the frame of the machine and uponrotationofthe screw #88 in a clockwise disupporting t drive Shah; 5provided with a rection the shaft ill carrying the printing roller 30 di gear 5 t one n there f geared v l2 Will be moved longitudinallytransversely of suitable drive t shown) the machine against the tensionof the spring 56 The shaft, 4 carries an impression roller 3 and onrotation of the screw 58 in an anti-clockwhich is fixed on the shaft,and parallel there- .wise direction sp in will force the shaft Ill withis a shaft l0 carrying a printing roller l2 and r0119! m the Opposite drection. 35 fixed thereon The drive for the printing roller i2 is frothe The shaft I0 is removably mounted in'adjust gear through shaft Wormgee! p d able bearings l4 and I6 carried by the frame 2, to the Shaft byScrew 89, Worm wo m gear 84 to provide for lateral adjustment of theprinting n Worm The wo m 86, worm gear 8 and 40 roller which .will bedescribed more in detail Worm 82 are carried on a bracket 99 secured 40hereinaften the fact of the gear 2!! which as above described Fixed t tshaft [0 d carrying th printis loose on the shaft. The gear 28 mesheswith ing roller and hence fixed with respect to the the gee! Wh ch isfast on the shaft to and printing roller is a gear l8, this gear meshingh f to h printing roller.

with a loose gear 20 mounted on shaft t. As w b seen from Figsa d a ctoras r In the event of a lateral misalignment the s '1 Provided With flges I2 and E4 on its printing roller I2 is adjusted longitudinally innera Outer edges r sp t vely is adapt d to transversely of the machine.This is accomcooperate with a friction roller is. This disc 10 plishedby means of the bearings it and iii of is mounted on a stub shaft l9carrying a handle 5 the printing roller shaft lil. Each of these bear-8, whereby the disc may be rockedselectively to 5 ing members is in theform of a cylindrical tube, bring either of th an s 12 r H nt enea themember It being provided on. its exterior ment with the friction roller16, so that as the with rack and member It with a similar rack bracketrevolves the roller 16 will be rotated :12, in mesh with pinions t4 andat, respectively. in either direction. This roller is fast on the 55Upon rotation of the pinions 44 and 66 the cylinshaft Tl carrying theworm 82. It will be obvious 55 roller 16 will effect a momentaryspeeding up or slowing down of the gear 20, thereby' efiectingperipheral adjustment of the printing roller.

The disc!!! is provided with a lip Hill for receiving springs ml and I02which have their other ends anchored to the frame 2 of the machine.These springs are for holding the disc 10 in neutral position, that is,out of engagement with the friction roller l8.- 9

It will be appreciated from the foregoing description of the presentinvention that I have provided a device wherein when any. misalignmentor non-registry of the printed jmatter is discovered the same, whetherperipheral or lateral, can be readily rectified by simple adjustmentswhile the machine is operating.

It is to be understood that various changes and modifications may bemade in the structures herein illustrated and described withoutdeparting from the spirit and scope of my invention.

i What I claim is:

1. A device of the class described comprising a pair of rollers, meansfor driving the same, the

bearings for one of said rollers being mounted to' move transversely ofthe device, and means for moving said bearings to adjust the rollercarried thereby longitudinaly while the rollersare rotating.

2. A device of the class described comprising a pair of driven rollers,bearings therefor, the bearings of one of said rollers being mounted formovement transversely of the device, and rack and pinion mechanism formoving saidlbearin'gs to efiect longitudinal adjustment of the rollercarried thereby.

3. A device of-the class described comprising a pair of driven rollers,hollow' bearings for one of said rollers, adjusting means within saidbearings for-eifecting longitudinal adjustment of the roller carriedthereby, said bearings being adjustable transversely of the machine, arack carried by each of said bearings and a pinion cooperating with eachof said racks to adjust said bearings.

'4. A device of the class described comprising a pair of rollers, meansfor driving one of said rollers, cooperating gearing to drive the otherof said rollers, and friction means for rotating one of said rollersthrough said gearing to alter the peripheral setting thereof withrespect to the other roller.

5. A device of the class described comprising a printing couple, a drivetherefor, a friction roll- -er, means for selectively rotating saidfriction roller in either direction, said friction roller being soconnected to said drive as to advance or retard one of the rollers 01the printing couple to adjust the same peripherally with respect to theother roller of the couple.

6. A device of the class described comprising a printing couple, a geardrive therefor, a friction roller, a shaft therefor, a worm driveconnected to said shaft and to said gear drive, a manually controlledmember for selecting the direction of rotation of said friction rollerto advance or retard said gear drive through said worm drive to adjustthe peripheral setting of one of the rollers of the couplewith respectto the other.

v 7. A device of the class described comprising a printing couple, agear drive therefor, a friction roller, a shaft therefoiyaworm driveconnected to said shaft and to said gear drive, a flanged disc, meansfor oscillating said disc to bring the flanges thereof into engagementwith said friction roller to select its direction of rotation whereby toalter the peripheral setting 01 one of roller.

8. A device of the class described comprising an impression roller, aprinting roller, a gear fixed to the printing roller, a drive from theimpression roller to the printing roller including a loose gear in meshwith said first mentioned gear,

the rollers of the couple independent of the other.

